Explicitly enforce the number or arguments accepted by some wwctl subcommands. #1717

Signed-off-by: Jonathon Anderson <janderson@ciq.com>

internal/app/wwctl/image/root.go

@@ -23,6 +23,7 @@ var baseCmd = &cobra.Command{
 		"node images. These commands will help you import, manage, and transform\n" +
 		"images into bootable Warewulf images.",
 	Aliases: []string{"vnfs", "container"},
+	Args:    cobra.NoArgs,
 }
 
 func init() {